zephyr

History

Huifeng Zhang 2c22e83dfb include: arch: arm: Remove aarch32 directory This commit follows the parent commit work. This commit introduces the following major changes. 1. Move all directories and files in 'include/zephyr/arch/arm/aarch32' to the 'include/zephyr/arch/arm' directory. 2. Change the path string which is influenced by the changement 1. Signed-off-by: Huifeng Zhang <Huifeng.Zhang@arm.com>		2023-09-13 10:08:05 +01:00
..
src	include: arch: arm: Remove aarch32 directory	2023-09-13 10:08:05 +01:00
CMakeLists.txt
prj.conf
README.rst
sample.yaml

README.rst

.. _debugmon-sample:

Debug monitor
#############

Overview
********

The Debug Monitor sample shows a basic configuration of debug monitor feature.


The source code shows how to:

#. Configure registers to enable degugging in debug monitor mode
#. Specify custom interrupt to be executed when entering a breakpoint

.. _debugmon-sample-requirements:

Requirements
************

Your board must:

#. Support Debug Monitor feature (available on Cortex-M processors with the exception of Cortex-M0)
#. Have an LED connected via a GPIO pin (these are called "User LEDs" on many of
   Zephyr's :ref:`boards`).
#. Have the LED configured using the ``led0`` devicetree alias.

Building and Running
********************

Build and flash Debug Monitor as follows, changing ``reel_board`` for your board:

.. zephyr-app-commands::
   :zephyr-app: samples/subsys/debug/debugmon
   :board: reel_board
   :goals: build flash
   :compact:

After flashing the board enters a breakpoint and executes debug monitor exception code.
The LED starts to blink, indicating that even though the processor spins in debug monitor
interrupt, other higher priority interrupts continue to execute.